/**
 * 零基础学C语言
 * 
 * @version 1st
 * @author 明日科技
 * @see http://www.mingrisoft.com
 */

#include <stdio.h>

int main() {
    char cChar1, cChar2;
    cChar1 = '@';
    cChar2 = '_';

    putchar(cChar1);
    putchar(cChar2);
    putchar(cChar1);
    putchar('\n');

    putchar('=');
    putchar('^');
    putchar('_');
    putchar('^');
    putchar('=');
    putchar('\n');

    return 0;
}

/*
output:
@_@
=^_^=
*/